公开(公告)号：US11646434B2

公开(公告)日：2023-05-09

申请号：US16980549

申请日：2019-03-12

Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA

Inventor： Sri R. Narayan ,  G. K. Surya Prakash ,  Archith Nirmalchandar ,  Advaith Murali ,  Bo Yang ,  Sankarganesh Krishnamoorthy ,  Lena Hoober-Burkhardt ,  Robert Aniszfeld

IPC: H01M8/18 ,  C07C309/32

CPC classification number: H01M8/188 ,  C07C309/32

Abstract: An organic flow battery having a positive electrode electrolyte containing organic compounds with extended conjugation and/or cyclic side chains is provided. The flow battery includes a positive electrode and a positive electrode electrolyte including first solvent and a first redox couple. The positive electrode electrolyte flows over and contacting the positive electrode. The first redox couple includes a first organic compound and a reduction product of the first organic compound. The flow battery also includes a negative electrode and a negative electrode electrolyte including a second solvent and a second redox couple. The negative electrode electrolyte flows g over and contacts the positive electrode. Typically, an ion exchange membrane is interposed between the positive electrode and the negative electrode Characteristically, the first organic compound resists crossover through the ion exchange membrane.

公开(公告)号：US11245111B2

公开(公告)日：2022-02-08

申请号：US16161647

申请日：2018-10-16

Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA

Inventor： Bo Yang ,  G. K. Surya Prakash ,  Robert Aniszfeld ,  Sri R. Narayan ,  Lena Hoober-Burkhardt ,  Sankarganesh Krishnamoorthy ,  Advaith Murali ,  Archith Nirmalchandar

IPC: H01M4/36 ,  H01M8/18 ,  H01M4/60 ,  H01M8/08 ,  C07C309/44 ,  C07C309/42 ,  C07C309/43 ,  C07C303/08 ,  H01M8/1018 ,  H01M4/02

Abstract: A quinone derivative with a high redox potential that does not undergo Michael addition or proto-desulfonation. This molecule addresses the key issues faced with the positive side material of an aqueous all-organic flow battery. This new molecule is 2,5-dihydroxy-4,6-dimethylbenzene-1,3-disulfonic acid (or the disulfonate salt thereof). This quinone derivative offers good solubility, electrochemical reversibility, and robustness to charge/discharge cycling. Quinones with reduced crossover are also provided.

公开(公告)号：US10833345B2

公开(公告)日：2020-11-10

申请号：US15723071

申请日：2017-10-02

Applicant: UNIVERSITY OF SOUTHERN CALIFORNIA

Inventor： Sri Narayan ,  Surya G. Prakash ,  Robert Aniszfeld ,  Bo Yang ,  Lena Hoober-Burkhardt ,  Sankarganesh Krishnamoorthy ,  Advaith Murali ,  Archith Nirmalchandar

IPC: H01M8/18 ,  H01M8/20 ,  H01M4/96 ,  H01M8/1018

Abstract: Quinones and related compounds for use in flow batteries are provided. Many of these compounds are found to mitigate the effects of crossover in a flow battery. Other structure for improving battery performance is provided.